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Home >> Kia >> 2001 >> Sephia LS, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Brake Booster >> Testing >> Checking For Vacuum Loss >> Unloaded Condition

Unloaded Condition

  1. Start engine.
  2. Stop engine when vacuum gauge reading reaches 19.7 inHg (500 mmHg). 
  3. Observe vacuum gauge for 15 seconds. If gauge shows 18.7-19.7 inHg (475-500 mmHg),  unit is operating.
    Fig 1: Testing Under Unloaded Condition
    G01080175
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